I love Simplefit, pullups/pushups/squats... that trio of exercises is seriously hard to beat, complete full body workout.

From following simplefit on and off for the last 4 or 5 years, I've come to a number of conclusions as to why I kept changing routines and not really getting the results I've been after.

I think it generally comes down to what our bodies best respond to, for me personally, it's slightly different variations of simplefit exercises.
As a "skinnyfat" type build, I want ideally a bigger upper chest, triceps and bigger biceps.

Comments: Started Day1 on thursday, so ideally wanted to get training days completed faster to get back onto a M/W/F split, so did day2 and day3 on same day. Bit of a endurance day on Saturday, did day2 SF followed by 45min HIIT on bike, followed by 3.3mile run and ending with SF day3. Felt good.

Comments on day1: Brutal and savage mixed together. These Diamond pushups are destroying me; the last set on round 30 and my face literally smashed into the floor..
I gave it everything (had special motivation today... )